Microbiology Chapter 9: Foodborne And Waterborne Bacterial Diseases

Front 1

intoxications

Back 1

diseases in which bacterial toxins, or poisons, are ingested in food or water.
Ex: toxins that cause botulism, staphylococcal food poisoning, clostridial

Front 2

infections

Back 2

diseases in which live bacteria in food and water are ingested and grow in the body.
ex: salmonellosis, shigellosis, cholera

Front 3

incubation period

Back 3

delay time before symptoms appear.
-toxins or microbes pass into intestine.
-affect gastrointestinal function or be absorbed into blood stream

Front 4

how many foodborne illnesses each year in the US?

Back 4

76 million
325,000 hospitalizations
5,000 deaths

Front 5

most fatal pathogen

Back 5

Listeria

Front 6

most common pathogen

Back 6

campylobacter

Front 7

#1 foodborne intoxication

Back 7

staphylococcus aureus

Front 8

staphylococcus aureus

Back 8

185,000
1-6 hour incubation period
enterotoxin- vagus nerve
-food intoxication
NO FEVER
-vomit, diarrhea, ab cramps, nausea
-requires 1 micrometer, >10'6 CFU/g of food

Front 9

staphylococcus aureus resevoirs

Back 9

-resevoirs: nose, throat, skin of humans, like sores (pus)
-survive and persist in air, dust, food processing equipment

Front 10

s. aureus largest outbreak

Back 10

-Japan 2000
-14,000 school children
-unsanitary practices in dairy company

Front 11

MRSA

Back 11

methicillin resistant s. aureus
-2000, first outbreak of community-aquired foodborne illness

Front 12

two foodborne bacteria that can grow in the fridge

Back 12

listeria monocytogenes
yersinia enterocolitica

Front 13

serotype

Back 13

variant of an organism that differs according to the antibodies it elicits from the immune system

Front 14

salmonella
# infected and deaths

Back 14

infected = 1.4 million per year
deaths = ~553

Front 15

salmonella
-symptoms
-incubation period
-length

Back 15

-cramps, nausea, diarrhea, ulceration, fever
-8-72 hours, usually 18-24
-few days to a week

Front 16

salmonella resevoirs

Back 16

GI tracts of many animals, especially chickens, reptiles, amphibians

Front 17

pathogen causing most food recalls

Back 17

listeria